Audi 80 JN takes cold no greasy goes out please help

Hi people I bought a 87 B3 Quattro 1.8 JN With KE Jetronic now to the problem it is starting well then 2-3 secunden on approx. 1100rottenunegn, then starts to jerk stutter until it goes out!. again start immediately again, then it stays on but squirts at 500 turns around! gazing doesn’t go out immediately. that whole goes like this 2-3 minutes then he also takes more bad than quite ferocious! In about this way he coughs up the drepayt high video:http://www.youtube.com/watc h?v=GoI7JeJ5Nc So and for the good last after about 5-10 minutes when it is warm it runs like it should all super empty run stabiel wessantnahme super………. I no longer know have measured all the sensors exchanged ….. I have exchanged all 3 sensors in the waterflusch also needed a used thermotimer bought for 79.99€! evt is helped me! Would I be happy mfg daniel